Display panel, manufacturing method thereof and display device

Abstract

The application discloses a display panel and a manufacturing method thereof and a display device, and relates to the technical field of display, which comprises a plurality of pixel regions and at least a non-pixel region located between two adjacent pixel regions; the display panel further comprises a substrate, a pixel definition layer located on one side of the substrate, the pixel definition layer comprising a pixel definition structure located in the non-pixel region and an opening located in the pixel region, a barrier portion arranged on the side of the pixel definition structure away from the substrate, and a light emitting device layer, the light emitting device layer comprising an organic common layer, the organic common layer being located on the side of the barrier portion away from the substrate; the barrier portion comprises at least one protruding portion, the protruding portion comprising a first bottom surface close to the substrate, an opposite first sidewall and a second sidewall, an included angle between the first sidewall and the first bottom surface being alpha, and an included angle between the second sidewall and the first bottom surface being beta, wherein one of alpha and beta is larger than the other. By introducing the barrier portion, the leakage phenomenon between sub-pixels is improved, and the display effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, more particularly, to a display panel, a manufacturing method thereof and a display device. BACKGROUND

[0002] Organic light-emitting diode (OLED) is considered as a new generation of display technology which is expected to replace thin film transistor-liquid crystal display (TFT-LCD) due to its self-luminous, thin, good color gamut, low power consumption and other advantages.

[0003] Currently, OLED technology has gradually matured and slowly entered the market. Organic light-emitting diode display device includes an organic light-emitting diode for converting electrical energy into light energy, which includes an anode, a cathode and an organic layer arranged between the cathode and the anode. In the display process, holes and electrons injected from the anode and the cathode, respectively, combine in the organic layer to form electron-hole pairs. The formed electron-hole pairs emit light and display images while falling from the excited state to the ground state.

[0004] The above-mentioned organic layer is formed in the pixel area and is located on the anode, and the cathode is formed on the organic layer. In the process of evaporating the organic layer, the organic layer will also be formed in the non-pixel area. At least the organic layer of the pixel area and the non-pixel area is in communication, that is, there may be an organic layer in communication between different sub-pixels. Under the current drive, it is very likely that the phenomenon of sub-pixel stealing light will occur. SUMMARY

[0005] Therefore, the present application provides a display panel, a manufacturing method thereof and a display device, aiming to improve the problem of sub-pixel stealing light.

[0006] In a first aspect, the present application provides a display panel, comprising a plurality of pixel areas and at least a non-pixel area located between two adjacent pixel areas;

[0007] The display panel further comprises:

[0008] a substrate;

[0009] a pixel definition layer located on one side of the substrate, comprising a pixel definition structure located in the non-pixel area and an opening located in the pixel area;

[0010] a barrier portion arranged on the side of the pixel definition structure away from the substrate;

[0011] a light emitting device layer, the light emitting device layer comprising an organic common layer, the organic common layer being located on the side of the barrier portion away from the substrate;

[0012] The barrier portion comprises at least one protruding portion, the protruding portion comprises a first bottom surface close to the substrate, an opposite first sidewall and a second sidewall, an included angle between the first sidewall and the first bottom surface is α, and an included angle between the second sidewall and the first bottom surface is β, wherein one of α and β is greater than the other.

[0013] In a second aspect, based on the same inventive concept, the present application provides a manufacturing method of a display panel, comprising:

[0014] providing a substrate, and forming an array layer on the substrate;

[0015] forming an anode on a side of the array layer away from the substrate, the anode being electrically connected to the array layer;

[0016] forming a pixel definition layer on a side of the anode away from the substrate;

[0017] disposing a first mask plate on a side of the pixel definition layer away from the substrate, the first mask plate comprising at least a full-transmissive region, a semi-transmissive region and a non-transmissive region;

[0018] exposure processing, forming an opening on the pixel definition layer corresponding to the full-transmissive region and exposing the anode, and forming a pixel definition structure and a barrier portion on the non-transmissive region and the semi-transmissive region, wherein the barrier portion is disposed on a side of the pixel definition structure away from the substrate; the barrier portion comprises at least one protruding portion, the protruding portion comprises a first bottom surface close to the substrate, an opposite first sidewall and a second sidewall, an included angle between the first sidewall and the first bottom surface is α, and an included angle between the second sidewall and the first bottom surface is β, wherein one of α and β is greater than the other;

[0019] forming a light-emitting device layer in at least the opening of the pixel region, the light-emitting device layer comprising an organic common layer.

[0020] In a third aspect, based on the same inventive concept, the present application further provides another manufacturing method of a display panel, comprising:

[0021] providing a substrate, and forming an array layer on the substrate;

[0022] forming an anode on a side of the array layer away from the substrate, the anode being electrically connected to the array layer;

[0023] forming a pixel definition layer on a side of the anode away from the substrate;

[0024] disposing a first mask plate on a side of the pixel definition layer away from the substrate, the first mask plate comprising a full-transmissive region and a non-transmissive region, or the first mask plate comprising a full-transmissive region and a semi-transmissive region;

[0025] forming an opening on the full-transmissive region by exposure and exposing the anode;

[0026] forming a first hard mask layer on the side of the opening and the pixel definition layer away from the substrate, forming a second organic film on the side of the first hard mask layer away from the substrate, processing the second organic film, forming an opening region and a non-opening region on the second organic film, and the opening region only overlaps with the pixel definition layer in a direction perpendicular to the substrate;

[0027] removing the first hard mask layer located in the opening region;

[0028] forming a barrier portion and a pixel definition structure on the pixel definition layer by etching, wherein the barrier portion is arranged on the side of the pixel definition structure away from the substrate; the barrier portion comprises at least one protruding portion, the protruding portion comprises a first bottom surface close to the substrate, and opposite first and second side walls, an angle between the first side wall and the first bottom surface is α, and an angle between the second side wall and the first bottom surface is β, wherein one of α and β is greater than the other;

[0029] sequentially removing the second organic film and the first hard mask layer;

[0030] forming a light emitting device layer in at least the opening of the pixel region, the light emitting device layer comprising an organic common layer.

[0031] In a fourth aspect, based on the same inventive concept, the present application further provides a display device comprising the display panel provided by the first aspect of the present application.

[0032] Compared with the related art, the display panel and the manufacturing method thereof and the display device provided by the present application at least achieve the following beneficial effects:

[0033] In the display panel and display device provided by the embodiment of the present application, or the display panel formed by the manufacturing method of the present application, the pixel definition layer comprises a pixel definition structure in the non-pixel region and an opening in the pixel region, the opening is used for arranging the light emitting device layer, the light emitting device layer in the opening emits light under the driving of the current to realize the display function, and the light emitting device layer comprises an organic common layer. When the organic common layer is formed, part of the organic common layer is located in the pixel region, and part of the organic common layer is located in the non-pixel region. In the present application, the barrier portion is arranged on the side of the pixel definition structure away from the substrate, the barrier portion comprises at least one protruding portion, the protruding portion is an asymmetric structure, the first side wall and the first bottom surface of the protruding portion form an angle α, the second side wall and the first bottom surface of the protruding portion form an angle β, and α and β are different. When the organic common layer is formed in the pixel region and the non-pixel region, the asymmetric protruding portion in the barrier portion prolongs the layout path of the organic common layer, reduces the amount of the organic common layer on the side of the protruding portion away from the substrate, and even the organic common layer will be able to be truncated on the side of the protruding portion away from the substrate, the driving current of a certain pixel region will not be able to flow to the adjacent pixel region, or only a small amount of current which is insufficient to drive the light emitting device layer to emit light can be transmitted to the adjacent pixel region. In this way, the current leakage phenomenon of the display panel is effectively improved, thereby being beneficial to improving the overall display effect of the display panel.

[0034] Of course, any product implementing the present application does not necessarily need to achieve all the technical effects described above.

[0035] Other features of the present application, and their advantages, will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0037] Figure 1 Fig. 1 shows a plan view of a display panel provided by an embodiment of the present application;

[0038] Figure 2 Fig. 2 shows a plan view of a display panel provided by an embodiment of the present application; Figure 1 Fig. 3 shows an AA-directional cross-sectional view of a display panel in Fig. 2;

[0039] Figure 3 Fig. 4 shows a structure schematic view of a non-pixel region between two adjacent pixel regions;

[0040] Figure 4 Fig. 5 shows another structure schematic view of a non-pixel region between two adjacent pixel regions;

[0041] Figure 5A plan view of the first and second protrusions between two adjacent openings is shown;

[0042] Figure 6 Another structural view of the non-pixel region between two adjacent pixel regions is shown;

[0043] Figure 7 Another structural view of the non-pixel region between two adjacent pixel regions is shown;

[0044] Figure 8 Another structural view of the non-pixel region between two adjacent pixel regions is shown;

[0045] Figure 9 Another structural view of the non-pixel region between two adjacent pixel regions is shown;

[0046] Figure 10 Another structural view of the non-pixel region between two adjacent pixel regions is shown;

[0047] Figure 11 Another structural view of the non-pixel region between two adjacent pixel regions is shown;

[0048] Figure 12 Another structural view of the non-pixel region between two adjacent pixel regions is shown;

[0049] Figure 13 Another structural view of the non-pixel region between two adjacent pixel regions is shown;

[0050] Figure 14 A relative position relationship diagram of the second color light emitting device and the blocking part is shown;

[0051] Figure 15 A BB cross-sectional view is shown; Figure 14

[0052] Figure 16 A relative position relationship diagram of the second color light emitting device and the blocking part is shown;

[0053] Figure 17 A flow chart of the manufacturing method of the display panel is shown;

[0054] Figure 18 A structural view of forming the array layer on the substrate in the display panel is shown;

[0055] Figure 19 A structural view of forming the anode on the array layer is shown;​

[0056] Figure 20 The diagram shows a structure in which a pixel definition layer is formed on the side of the anode away from the substrate.

[0057] Figure 21 The diagram shows a structure in which a first mask is set on one side of the pixel definition layer.

[0058] Figure 22 The diagram shows a structure in which a pixel definition structure and a blocking part are formed on a pixel definition layer.

[0059] Figure 23 The diagram shows a structural schematic for forming an organic common layer.

[0060] Figure 24 The diagram shows another structural schematic of forming a pixel definition structure and a blocking part on a pixel definition layer;

[0061] Figure 25 The diagram shown is another flowchart of the manufacturing method of the fixed display panel provided in the embodiment of the present invention;

[0062] Figure 26 The diagram shown is a schematic of a structure that incorporates a first hard mask layer.

[0063] Figure 27 The diagram shows a structural schematic of forming a first organic film above a first hard mask layer.

[0064] Figure 28 The diagram shows a structure with part of the first hard mask layer removed.

[0065] Figure 29 The diagram shows a structure in which a recess is formed on a protrusion.

[0066] Figure 30 The image shown is in Figure 29 A schematic diagram of a structure based on the shown structure, with the first organic film and the first hard mask layer removed;

[0067] Figure 31 The diagram shown is another flowchart of the method for manufacturing a display panel provided in an embodiment of the present invention;

[0068] Figure 32 The diagram shows a scheme where the first mask only includes fully transparent and opaque areas when it is introduced.

[0069] Figure 33 The diagram shows a scheme where the first mask only includes fully transparent and semi-transparent areas when the first mask is introduced.

[0070] Figure 34 To utilize Figure 32A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0071] Figure 35 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 33 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0072] Figure 36 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 34 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0073] Figure 37 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 36 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0074] Figure 38 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 35 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0075] Figure 39 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 38 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0076] Figure 40 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 38 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0077] Figure 41 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 39 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0078] Figure 42 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 40 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0079] Figure 43 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 41 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0080] Figure 44 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 42 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0081] Figure 45 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 43 A structure diagram of a structure formed by exposing the corresponding first mask structure;

[0082] Figure 46 A structure diagram of a structure formed by exposing the corresponding first mask structure; Figure 44A structural diagram of a structure in which an organic common layer is formed on the basis of the structure shown in FIG. 1;

[0083] Figure 47 As shown in FIG. 2, the organic common layer 20 is formed on the basis of the structure shown in FIG. 1. Figure 45 A structural diagram of a structure in which an organic common layer is formed on the basis of the structure shown in FIG. 1;

[0084] Figure 48 As shown in FIG. 2, the organic common layer 20 is formed on the basis of the structure shown in FIG. 1. DETAILED DESCRIPTION

[0085] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement, numerical expressions, and numerical values of components and steps set forth in these embodiments are merely illustrative and do not limit the scope of the present application unless otherwise specifically stated.

[0086] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the scope of the application or its application or uses.

[0087] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus should be considered as being part of the specification.

[0088] In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0089] Various modifications and changes can be made as would be obvious to a person of ordinary skill in the art having the benefit of this disclosure, without departing from the spirit and scope of the application. Thus, the scope of the application should not be limited to the examples described herein, but should be given the broadest interpretation available under the statutes and regulations. It is to be understood that the examples provided herein are intended to be illustrative only and that the scope of the present application is to be limited only by the appended claims.

[0090] It should be noted that like numbers and letters refer to like items throughout the drawings, and that, as such, no further discussion on such items is needed.

[0091] In the OLED display panel provided by the related art, since the organic layer is located in both the pixel region and the non-pixel region, when only one of two adjacent pixel regions needs to emit light, the current driving the pixel region to emit light will leak to the other pixel region through the organic layer, causing the pixel region that is not expected to emit light to emit light, which affects the display effect of the display panel.

[0092] Therefore, the present invention provides a display panel including a plurality of pixel regions and at least a non-pixel region located between two adjacent pixel regions; the display panel further includes: a substrate; a pixel definition layer located on one side of the substrate, including a pixel definition structure located in the non-pixel region and an opening located in the pixel region; a barrier portion disposed on the side of the pixel definition structure away from the substrate; a light-emitting device layer, the light-emitting device layer including an organic common layer, the organic common layer being located on the side of the barrier portion away from the substrate; the barrier portion includes at least one protrusion, the protrusion including a first bottom surface near the substrate, a first sidewall and a second sidewall opposite to each other, the included angle between the first sidewall and the first bottom surface being α, and the included angle between the second sidewall and the first bottom surface being β, wherein one of α and β is greater than the other. In this invention, the asymmetrical protrusions in the barrier portion extend the laying path of the organic common layer, reducing the amount of organic common layer on the side of the protrusion away from the substrate. In fact, the organic common layer can be cut off on the side of the protrusion away from the substrate, so the driving current of a certain pixel area cannot leak to the adjacent pixel area, or only a small amount of current that is insufficient to drive the light-emitting device layer to emit light may be transmitted to the adjacent pixel area. In this way, the leakage phenomenon of the display panel is effectively improved, which is beneficial to improving the overall display effect of the display panel.

[0093] The above is the core idea of ​​this invention. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the embodiments of this invention.

[0094] Figure 1 The image shown is a plan view of a display panel provided in an embodiment of the present invention. Figure 2 As shown Figure 1 A cross-sectional view of the display panel along the AA direction. Figure 3 The diagram shown illustrates a possible structure of the non-pixel region between two adjacent pixel regions. Please refer to the provided text. Figures 1 to 3 The display panel 100 provided in this embodiment of the invention includes a plurality of pixel regions Q0 and at least a non-pixel region Q1 located between two adjacent pixel regions Q0;

[0095] The display panel 100 also includes:

[0096] Substrate 00;

[0097] The pixel definition layer 20 located on one side of the substrate 00 includes a pixel definition structure 21 located in the non-pixel region Q1 and an opening K located in the pixel region Q0;

[0098] The blocking portion 22 is disposed on the side of the pixel definition structure 21 away from the substrate 00;

[0099] a light-emitting device layer 30, the light-emitting device layer 30 comprising an organic common layer 31 located on a side of the barrier portion 22 away from the substrate 00;

[0100] The barrier portion 22 comprises at least one protruding portion 220, the protruding portion 220 comprising a first bottom surface M0 close to the substrate 00, an opposite first sidewall M1 and a second sidewall M2, an angle between the first sidewall M1 and the first bottom surface M0 being a, and an angle between the second sidewall M2 and the first bottom surface M0 being b, wherein one of a and b is larger than the other.

[0101] Optionally, the display panel provided by the embodiment can be a display panel using organic light-emitting diode display technology, i.e., an OLED display panel. The basic structure of the light-emitting device layer 30 of the OLED display panel generally comprises an anode 32, an organic common layer 31 and a cathode 33. When a proper voltage is supplied by a power supply, holes of the anode 32 and electrons of the cathode 33 will combine in the light-emitting device layer 30 to generate bright light. Compared with a thin-film field-effect transistor liquid crystal display, the OLED display panel has the characteristics of high visuality and high brightness, and is more power-saving, lighter and thinner. The opening K mentioned in the present application can be regarded as a region for accommodating a light-emitting material layer defined by the pixel definition layer 20, i.e., a pixel region. Other regions in the display area except the pixel region are non-pixel regions.

[0102] With reference to Figure 2 Optionally, in some other embodiments of the present application, an array layer 10 is further arranged between the substrate 00 and the light-emitting device layer 30, the array layer 10 comprising a transistor T for providing an electrical signal to the anode 32 of the light-emitting device layer 30. Although Figure 2 Although only the transistor T connected to the anode 32 is shown in the film layer structure of the present application, optionally, the array layer 10 further comprises other transistors not directly connected to the anode 32 of the light-emitting device layer 30, for example, the array layer comprises a plurality of pixel driving circuits, each pixel driving comprising at least two transistors, and optionally, different anodes 32 of different light-emitting device layers 30 are connected to different pixel driving circuits. The pixel driving circuit can be, for example, a 2T1C (two transistors and one capacitor), 7T1C, 8T1C circuit in the related art, which is not specifically limited in the present application.

[0103] With reference to Figures 1 to 3In the display panel provided by the embodiment of the present application, the pixel definition layer 20 includes the pixel definition structure 21 located in the non-pixel area and the opening K located in the pixel area, the opening K is used for arranging the light emitting device layer 30, the light emitting device layer 30 in the opening emits light under the driving of the current to realize the display function, wherein the light emitting device layer 30 includes the organic common layer 31. When the organic common layer 31 is formed, part of the organic common layer 31 is located in the pixel area Q0 and part of the organic common layer 31 is located in the non-pixel area Q1. In the present application, the barrier part 22 is arranged on the side of the pixel definition structure 21 away from the substrate 00, the barrier part 22 includes at least one protruding part 220, the protruding part 220 is an asymmetric structure, along the arrangement direction of the adjacent two pixel areas Q0, the protruding part 220 located between the two pixel areas includes the first side wall M1 and the second side wall M2, wherein the angle between the first side wall M1 and the first bottom surface M0 is α, the angle between the second side wall M2 and the first bottom surface M0 is β, and α and β are different. When the organic common layer 31 is formed in the pixel area Q0 and the non-pixel area Q1, the asymmetric protruding part 220 in the barrier part 22 prolongs the layout path of the organic common layer 31, reduces the amount of the organic common layer 31 on the side of the protruding part 220 away from the substrate 00, and even the organic common layer 31 will be able to be truncated on the side of the protruding part 220 away from the substrate 00, the driving current of a certain pixel area will not be able to flow to the adjacent pixel area, or only a small amount of current which is insufficient to drive the light emitting device layer 30 to emit light may be transmitted to the adjacent pixel area, in this way, the current leakage phenomenon of the display panel is effectively improved, thus being beneficial to improving the overall display effect of the display panel.

[0104] In particular, considering that the side of the barrier portion 22 away from the substrate 00 is provided with the cathode 33, when the barrier portion 22 is introduced, if the included angles between the first side wall M1 and the second side wall M2 and the first bottom surface M0 are both set to be small, the first side wall M1 and the second side wall M2 are both relatively gentle, and a relatively gentle organic common layer 31 can be formed on the first side wall M1 and the second side wall M2, which cannot effectively block the organic common layer 31. If the included angles between the first side wall M1 and the second side wall M2 and the first bottom surface M0 are both set to be large, the first side wall M1 and the second side wall M2 are both relatively steep, and the amount of the organic common layer 31 formed on the side of the first side wall M1 and the second side wall M2 away from the substrate will be very small or even cut off the organic common layer, but at the same time, the amount of the cathode 33 formed on the side of the first side wall M1 and the second side wall M2 away from the substrate will also be reduced, which has a greater impact on the overall resistance of the cathode 33. Therefore, the present application sets the included angles between the two side walls opposite the protruding portion 220 in the barrier portion 22 and the first bottom surface to be different, so that one of the first side wall M1 and the second side wall M2 is relatively steep, and the other is relatively gentle. In this way, the steep side wall can better block the organic common layer, and in addition, due to the existence of the gentle side wall, the amount of the cathode that can be provided on the side of the first side wall and the second side wall away from the substrate can be ensured, so that the impact on the cathode resistance can be avoided. Thus, while improving the problem of sub-pixel light stealing, the display effect can be protected and ensured.

[0105] It should be noted that, Figure 1 Only a display panel with a rectangular structure is taken as an example for description, and the actual shape of the display panel is not limited. In some other embodiments of the present application, the shape of the display panel can also be a rounded rectangle, a circle or other special shapes. Moreover, Figure 1 Only part of the pixel regions in the display area are shown in the figure, and this does not mean that the actual number of pixel regions included in the display panel is limited. Figure 2 Only one film layer structure of the display panel is shown, and this does not mean that the actual number of film layers and the thickness of the film layers included in the display panel are limited.

[0106] It should be further noted that, Figure 2 and Figure 3 It is only shown in the figure that the barrier portion 22 of the non-pixel region Q1 between adjacent pixel regions Q0 only includes one protruding portion 220, but this is not limited. In some other embodiments of the present application, the same barrier portion 22 can also include two or more protruding portions 220, which will be described in subsequent embodiments.

[0107] Please refer to Figure 2 and Figure 3In an alternative embodiment of the present application, the opening K comprises a first opening K1 and a second opening K2, the light emitting device layer 30 comprises a first color light emitting device P1 and a second color light emitting device P2, the first opening K1 corresponds to the first color light emitting device P1, the second opening K2 corresponds to the second color light emitting device P2, the wavelength of light emitted by the first color light emitting device P1 is greater than the wavelength of light emitted by the second color light emitting device P2; the first opening K1 and the second opening K2 are located on both sides of the protruding portion 220 and are adjacent to the protruding portion 220, along the first direction F1, the first opening K1 is located on the side of the first side wall M1 away from the second side wall M2, the second opening K2 is located on the side of the second side wall M2 away from the first side wall M1, the first direction is the arrangement direction of the first opening K1 and the second opening K2 adjacent to the same protruding portion 220; wherein, a < b.

[0108] The embodiment shows a setting mode of the protruding part when the protruding part is arranged between two light emitting devices of different wavelengths. Specifically, assuming that the light emitting devices located on both sides of the same protruding part and adjacent to the protruding part in the first direction are the first color light emitting device P1 and the second color light emitting device P2, respectively, wherein the wavelength of the light emitted by the first color light emitting device P1 is greater than the wavelength of the light emitted by the second color light emitting device P2, at this time, the turn-on voltage of the first color light emitting device P1 is less than the turn-on voltage of the second color light emitting device P2, that is, assuming that among the first color light emitting device P1 and the second color light emitting device P2 arranged adjacent to each other, only the second color light emitting device P2 needs to emit light, and the first color light emitting device P1 does not need to emit light, only the driving voltage needs to be provided to the second color light emitting device P2. In the related art, since the organic common layer between the first color light emitting device P1 and the second color light emitting device P2 is connected, the larger driving voltage provided to the second color light emitting device P2 can be transmitted to the first color light emitting device P1 through the organic common layer. Since the first color light emitting device P1 requires a smaller turn-on voltage, when the larger driving voltage provided to the second color light emitting device P2 is transmitted to the first color light emitting device P1, it is extremely likely to cause the first color light emitting device P1 to steal light, which affects the overall display effect. In the present application, after introducing the protruding part in the barrier part 22 between the first color light emitting device P1 and the second color light emitting device P2, the second side wall M2 adjacent to the second color light emitting device P2 in the protruding part is arranged to be relatively steep, so that the difference between the top of the protruding part at the position of the second side wall M2 and the first bottom surface is large. The organic common layer at the top of the second side wall M2 is extremely likely to be disconnected, or only a small thickness of the organic common layer can be reserved at the top position. When the driving voltage provided to the second color light emitting device P2 reaches the top position corresponding to the second side wall M2, it cannot be further transmitted to the first color light emitting device P1 or due to the small thickness and large impedance of the organic common layer at the top position, only a small voltage can be transmitted to the first color light emitting device P1, which is not enough to drive the first color light emitting device P1 to emit light, thereby effectively improving the phenomenon that the first color light emitting device P1 may steal light, and improving the display effect of the display panel.

[0109] Continue to combine Figure 2 And Figure 3In an optional embodiment of the present application, 0° < a ≤ 70°, 60° ≤ β ≤ 100°. Specifically, the steeper the first sidewall M1 in the protrusion 220, the better the improvement effect on the leakage current between the sub-pixels, and considering that the first sidewall M1 is adjacent to the first color light emitting device P1 with a smaller turn-on voltage, even if the electrical signal provided to the first color light emitting device P1 leaks to the second color light emitting device P2, it is not enough to light up the second color light emitting device P2, so the first sidewall M1 in the protrusion can be set to 0° < a ≤ 70° without increasing the process difficulty. In the first protrusion 211, the second sidewall M2 is adjacent to the second light emitting device with a larger turn-on voltage, the steeper the second sidewall M2, the more conducive to improving the blocking effect on the leakage current, for example, the difference between the top end and the bottom end of the second sidewall M2 can be increased, the path of the leakage current transmission is increased, and the attenuation degree of the leakage current is improved, thereby avoiding the occurrence of the light stealing phenomenon. Within the process allowable range, the angle between the second sidewall M2 and the first bottom surface can be set to 60° ≤ β ≤ 100° to better improve the light stealing phenomenon.

[0110] Optionally, 40° ≤ a ≤ 60°, 30° ≤ a ≤ 50°; 90° ≤ β ≤ 100°, 80° ≤ β ≤ 90°.

[0111] In an optional embodiment of the present application, the second color light emitting device P2 is a blue light emitting device. Optionally, the display panel includes red light emitting devices, green light emitting devices, and blue light emitting devices, and the three color light emitting devices emit light to realize the color display function of the display panel. Among the three colors of light emitting devices, the wavelength of the blue light emitting device is the shortest, and the turn-on voltage is the largest. Therefore, when the second color light emitting device P2 is a blue light emitting device, it is beneficial to avoid the transmission of a larger driving voltage provided to the blue light emitting device to other color light emitting devices adjacent thereto, resulting in the light stealing phenomenon of other color light emitting devices. Optionally, the first color light emitting device P1 is a red light emitting device or a green light emitting device.

[0112] Continuing to combine Figure 2 and Figure 3 In an optional embodiment of the present application, in the direction from the first opening K1 to the second opening K2, the minimum distance between the blocking portion 22 and the first opening K1 is D1, and the minimum distance between the blocking portion 22 and the second opening K2 is D2, wherein D1 < D2.

[0113] Specifically, when the second color light emitting device P2 arranged in the second opening K2 has a relatively large turn-on voltage, the leakage current to the other color light emitting device adjacent to the second color light emitting device P2 will be relatively large. In the embodiment, the minimum distance D2 between the barrier portion 22 and the second opening K2 adjacent to the barrier portion 22 is greater than the minimum distance D1 between the barrier portion 22 and the first opening K1 adjacent to the barrier portion 22, which is beneficial to prolong the path of the leakage current from the second color light emitting device P2 to the first color light emitting device P1, reduce the amount of electrical signal transmitted from the second color light emitting device P2 to the first color light emitting device P1, and thus also beneficial to improve the leakage current phenomenon and avoid the occurrence of the light emitting device turn-on phenomenon.

[0114] It should be noted that the minimum distance D1 between the barrier portion 22 and the first opening K1 mentioned in the embodiment refers to the minimum distance between the protruding portion 220 in the barrier portion 22 and the edge of the first opening K1 facing the barrier portion 22 in the barrier portion 22 and the first opening K1 adjacent to the barrier portion 22. Similarly, the minimum distance D2 between the barrier portion 22 and the second opening K2 mentioned in the embodiment refers to the minimum distance between the protruding portion 220 in the barrier portion 22 and the edge of the second opening K2 facing the barrier portion 22 in the barrier portion 22 and the second opening K2 adjacent to the barrier portion 22.

[0115] In an optional embodiment of the present application, the total thickness of the protruding portion and the pixel definition structure 21 in the direction perpendicular to the substrate 00 is H1, and 1.5 μm≤H1≤2.5 μm.

[0116] It should be noted that the total thickness of the protruding portion 220 and the pixel definition structure 21 directly determines the amount of organic common layer that can be accommodated on the side of the protruding portion away from the pixel definition structure 21. When the total thickness of the two is less than 1.5 μm, the thickness of the organic common layer that can be accommodated on the side of the protruding portion away from the pixel definition structure 21 will be relatively large, which is not obvious for leakage current improvement, that is, the light emitting device turn-on phenomenon may still occur. When the total thickness of the two is greater than 2.5 μm, although the thickness of the organic common layer that can be accommodated on the side of the protruding portion away from the pixel definition structure 21 is greatly reduced, the overall thickness of the display panel is also increased. Therefore, when the total thickness of the protruding portion and the pixel definition structure 21 is set to 1.5 μm≤H1≤2.5 μm in the embodiment, the amount of organic common layer on the side of the protruding portion away from the substrate 00 is effectively reduced, the impedance of the organic common layer is increased, the light emitting device turn-on phenomenon is avoided, and the thickness of the display panel is not affected, thereby also being beneficial to meet the thinness requirement of the display panel. Optionally, 1 μm≤H1≤2 μm, or 1.2 μm≤H1≤2.4 μm, and the like.

[0117] Figure 4Another structure diagram of the non-pixel region between two adjacent pixel regions is shown. In an optional embodiment of the present application, the opening K includes a first opening K1 and a second opening K2, the first opening K1 and the second opening K2 are located on both sides of the protruding portion 220 and are adjacent to the protruding portion 220, and the first opening K1 and the second opening K2 are arranged along the first direction F1; the protruding portion 220 includes a first protruding portion 211 and a second protruding portion 212; along the first direction F1, the first protruding portion 211 is located between the first opening K1 and the second protruding portion 212, and the first side wall of the first protruding portion 211 is adjacent to the first opening K1; the second protruding portion 212 is located between the second opening K2 and the first protruding portion 211, and the first side wall of the second protruding portion 212 is adjacent to the second opening K2.

[0118] Please refer to Figure 4 The present embodiment shows another arrangement of the protruding portion in the barrier portion 22. Specifically, the present embodiment shows a scheme in which two protruding portions are included in the same barrier portion 22, and the two protruding portions are a first protruding portion 211 and a second protruding portion 212, respectively. The arrangement direction of the first protruding portion 211 and the second protruding portion 212 is the same as that of the first opening K1 and the second opening K2. The first protruding portion 211 is arranged between the second protruding portion 212 and the first opening K1. The second protruding portion 212 is arranged between the first protruding portion 211 and the second opening K2. The first side wall with a gentle slope in the first protruding portion 211 and the second protruding portion 212 is adjacent to the first opening K1 and the second opening K2, respectively. When two protruding portions are introduced in the barrier portion 22 between the first opening K1 and the second opening K2, the arrangement of the two protruding portions is beneficial to prolong the layout path of the organic common layer and the electrical signal transmission path. The longer the electrical signal transmission path is, the more serious the signal attenuation is. Therefore, even if the electrical signal provided to the second opening K2 is transmitted in the organic common layer, the amount of the signal that can be transmitted to the first opening K1 will be reduced, which is beneficial to reduce the phenomenon of the sub-pixel in the first opening K1 stealing light. In addition, the space between the two first protruding portions 211 can also accommodate more organic common layer, thereby reducing the amount of the organic common layer on the side of the first protruding portion 211 away from the substrate 00, increasing the impedance of the organic common layer, and further reducing the amount of the electrical signal that can be transmitted to the position of the first opening K1, thereby effectively avoiding the phenomenon of the sub-pixel in the first opening K1 stealing light.

[0119] Figure 5 A plan view of the first protruding portion 211 and the second protruding portion 212 between two adjacent openings is shown. Please refer to Figure 4 and Figure 5 In an optional embodiment of the present application, the shape of the orthographic projection of the first protruding portion 211 on the substrate 00 is the same as that of the orthographic projection of the second protruding portion 212 on the substrate 00.

[0120] Specifically, when the first protruding part 211 and the second protruding part 212 are introduced between the two adjacent openings, optionally, the first protruding part 211 and the second protruding part 212 can be formed in the same process, for example, when the first protruding part 211 and the second protruding part 212 are formed by introducing a mask process combined with etching and the like, the shapes of the openings on the mask plate corresponding to the first protruding part 211 and the second protruding part 212 are the same. When the first protruding part 211 and the second protruding part 212 are symmetrically arranged, the corresponding openings on the mask plate can also be symmetrically arranged, thereby facilitating the simplification of the mask plate manufacturing process, and further facilitating the simplification of the overall manufacturing process of the display panel.

[0121] Optionally, Figure 4 The embodiments shown take the example that the included angle a between the first side wall M1 and the first bottom surface M0 is an acute angle, and the included angle β between the second side wall M2 and the first bottom surface M0 is an obtuse angle. When the included angle β between the second side wall M2 and the first bottom surface M0 is an acute angle, it can be regarded that the end where the second side wall M2 and the first bottom surface M0 meet is offset in the direction close to the first side wall, so that the inner diameter of the groove bottom of the first groove 221 formed between the first protruding part 211 and the second protruding part 212 is greater than the inner diameter of the groove opening. This kind of arrangement mode is equivalent to increasing the amount of organic common layer that the first groove 221 can accommodate, which not only effectively prolongs the layout path of the organic common layer and the electrical signal transmission path, improves the attenuation amount of the electrical signal, but also reduces the amount of organic common layer accommodated by the top of the first protruding part 211 and the second protruding part 212, reduces the amount of electrical signal transmitted to the sub-pixel corresponding to the first opening K1 through the organic common layer, thereby more facilitating the improvement of the light stealing phenomenon of the sub-pixel.

[0122] Figures 6 to 8 Another structure diagram of the non-pixel region between the two adjacent pixel regions is shown respectively. In an optional embodiment of the present application, the first groove 221 is formed between the second side wall of the first protruding part 211 and the second side wall M2 of the second protruding part 212, the protruding part includes the first top surface M4 away from the substrate 00, the included angle between the first top surface M4 and the second side wall M2 is θ, 85°≤θ<180°, and β≤90°.

[0123] Specifically, Figures 6 to 8 The embodiments shown respectively show several feasible structures of the first protruding part 211 and the second protruding part 212 and the first groove 221 between the first protruding part 211 and the second protruding part 212 when the first protruding part 211 and the second protruding part 212 are introduced in the barrier part 22 between the first opening K1 and the second opening K2. Among them, Figure 6The illustrated embodiment takes the first top surface M4 and the second side wall M2 as an obtuse angle θ and the bottom surface of the first groove 221 as an arc as an example for illustration, Figure 7 The illustrated embodiment takes the first top surface M4 and the second side wall M2 as a right angle θ and the bottom surface of the first groove 221 as a plane as an example for illustration, Figure 8 The illustrated embodiment takes the first top surface M4 and the second side wall M2 as an acute angle θ and the bottom surface of the first groove 221 as an arc as an example for illustration, in the three embodiments, the angle β between the second side wall M2 and the first bottom surface is less than or equal to 90°, the first protruding part 211, the second protruding part 212 and the first groove 221 arranged between the first protruding part 211 and the second protruding part 212 of this structure can be formed by mask and etching process, and the specific manufacturing process will be described in detail in subsequent embodiments, so as to prolong the layout path of the organic common layer and the electrical signal transmission path, improve the light stealing phenomenon of the sub-pixel, and also facilitate the simplification of the manufacturing process.

[0124] It should be noted that when the angle between the first top surface M4 and the second side wall M2 is not 90 degrees, the first top surface M4 will present an inclined structure, and the amount of the organic common layer accommodated on the inclined first top surface M4 will be reduced. At the same time, since the first top surface M4 is an inclined structure, a protruding sharp corner will be formed at the position where the first top surface M4 and the first side wall meet, or at the position where the first top surface M4 and the second side wall M2 meet. The thickness of the organic common layer that can be accommodated above the sharp corner will be less than the thickness of the organic common layer that can be accommodated at other positions. The impedance of the organic common layer at the sharp corner position will be larger, thus more conducive to reducing the amount of electrical signal transmitted from the second opening K2 to the first opening K1, thus more conducive to improving the light stealing phenomenon of the sub-pixel.

[0125] Optionally, the inner diameter of the first groove 221 is less than 2 μm, so that the corresponding structure of the first protruding part 211, the second protruding part 212 and the first groove 221 in the present application can be applied to products with higher pixel density and smaller spacing between adjacent two openings, and the problem of light stealing of sub-pixels of this type of product is improved.

[0126] Optionally, Figures 6 to 8 In the illustrated embodiment, the total thickness of the pixel definition structure 21 and the barrier part 22 can be set to 1.5 μm-2.1 μm, the depth of the first groove 221 is less than the total thickness, and the depth of the first groove 221 can be set to 0.7 μm-1.3 μm, so as to ensure that the first groove 221 can accommodate the organic common layer without penetrating the pixel definition structure 21, so as to reduce the amount of the organic common layer accommodated on the first top surface M4 of the first protruding part 211 and the second protruding part 212.

[0127] Figure 9 andFigure 10 Another structure diagram of non-pixel region between two adjacent pixel regions is shown, in an optional embodiment of the present application, the barrier 22 further comprises at least one boss 213, the boss 213 is located between the first protruding part 211 and the second protruding part 212, and the boss 213 and the first protruding part 211 and the boss 213 and the second protruding part 212 form a second groove 222 respectively.

[0128] Specifically, the embodiment shows the scheme of introducing the first protruding part 211 and the second protruding part 212 in the barrier 22 between the first opening K1 and the second opening K2 and introducing four bosses 213 between the first protruding part 211 and the second protruding part 212, wherein the number of bosses 213 is illustrative and does not limit the actual number of bosses 213 contained between the first protruding part 211 and the second protruding part 212. Alternatively, when the boss 213 is introduced between the first protruding part 211 and the second protruding part 212, the arrangement direction of the boss 213 and the arrangement direction of the first protruding part 211 and the second protruding part 212 are the same as the arrangement direction of the first opening K1 and the second opening K2 located on both sides of the barrier 22 and adjacent to the barrier 22 respectively. In this way, along the arrangement direction of the first opening K1 and the second opening K2, the second groove 222 is formed between the adjacent bosses 213, the first protruding part 211 and the adjacent boss 213, and the second protruding part 212 and the adjacent boss 213 respectively, which is equivalent to increasing the number of grooves contained in the barrier, thereby more conducive to prolonging the layout path of the organic common layer between the first opening K1 and the second opening K2 and the transmission path of the electrical signal, increasing the volume of the organic common layer that can be accommodated in the groove, and thus more conducive to reducing the amount of common layer that can be accommodated on the upper surface of the first protruding part 211, the second protruding part 212 and the boss 213, more conducive to increasing the impedance of the organic common layer, improving the leakage problem from the second opening K2 to the first opening K1, and avoiding the occurrence of sub-pixel stealing.

[0129] Alternatively, Figure 9 And Figure 10 In the embodiment shown, the inner diameter of the slot position of the second groove 222 can be set to less than 2 μm, so that the above-mentioned first protruding part 211 and second protruding part 212 and first groove 221 corresponding structure in the present application can be applied to products with higher pixel density and smaller spacing between two adjacent openings, improving the problem of sub-pixel stealing of this type of product.

[0130] Figure 9 The embodiment shown shows the structure of the second groove 222 with a right trapezoidal cross section, Figure 10The illustrated embodiment shows that the cross section of the second groove 222 is in the shape of an inverted trapezoid, both of which can serve to accommodate the organic common layer, Figure 9 The volume of the trapezoidal structure provided in the illustrated embodiment is larger, and the amount of the organic common layer that can be accommodated is more, which is more conducive to improving the problem of sub-pixel light stealing.

[0131] With continued reference to Figure 9 and Figure 10 In an optional embodiment of the present application, the depth of the at least one second groove 222 in the direction of the vertical substrate 00 is H2, and 0.7 μm≤H2≤1.3 μm.

[0132] It should be noted that when the inner diameter of the second groove 222 is fixed, the depth of the second groove 222 directly determines the amount of the organic common layer that can be accommodated in the second groove 222. If the depth of the second groove 222 is too small, for example, less than 0.7 μm, the amount of the organic common layer that can be accommodated on the surfaces of the first protruding portion 211, the second protruding portion 212 and the boss 213 is still relatively large, and the improvement in the leakage is not obvious. If the depth of the second groove 222 is too large, for example, greater than 1.3 μm, the second groove 222 can penetrate the pixel definition structure 21, affecting the performance of other structures in the display panel. Therefore, when the depth of the second groove 222 is set to 0.7 μm-1.3 μm in the present embodiment, the amount of the organic common layer that can be accommodated in the groove is ensured, the light stealing phenomenon caused by the leakage is avoided, and the other structures in the display panel are not affected.

[0133] Alternatively, the depth of the second groove 222 satisfies 0.8 μm≤H2≤1.2 μm, or 0.9 μm≤H2≤1.1 μm, or 1 μm≤H2≤1.3 μm, etc., which is not specifically limited in the present application.

[0134] With continued reference to Figure 9 and Figure 10 In an optional embodiment of the present application, the surfaces of the first protruding portion 211, the second protruding portion 212 and the boss 213 away from the pixel definition structure 21 are located in the same plane.

[0135] When the upper surfaces of the first protruding portion 211, the second protruding portion 212 and the boss 213 are coplanar, the first protruding portion 211, the second protruding portion 212 and the boss 213 can be made by using a mask with the same transmittance, which is conducive to simplifying the manufacturing process. Alternatively, please refer to Figure 9 and Figure 10 When a plurality of bosses 213 are introduced between the first protruding portion 211 and the second protruding portion 212, the shapes and sizes of the plurality of bosses 213 can be set to be the same, which is also conducive to simplifying the overall manufacturing process of the display panel.

[0136] Figure 11 Fig. 4 shows another structure diagram of the non-pixel region between two adjacent pixel regions, please refer to Figure 11 In an optional embodiment of the present application, the surface of at least one of the first protruding part 211, the second protruding part 212 and the boss 213 away from the pixel definition structure 21 is a convex arc surface.

[0137] This embodiment shows a scheme that three bosses 213 are arranged between the first protruding part 211 and the second protruding part 212, and the shapes and sizes of the three bosses 213 are not completely same. In this embodiment, the surfaces of the first protruding part 211, the second protruding part 212 and the boss 213 are all arc surfaces. In actual production, different transmittance masks can be introduced to form the structure, for example, the transmittance of the mask corresponding to the groove is the highest, the transmittance of the mask corresponding to the boss 213 with smaller height is the second, and the transmittance of the mask corresponding to the first protruding part 211 and the second protruding part 212 with larger height is the lowest, and the forming process is simple.

[0138] When the surface of at least one of the first protruding part 211, the second protruding part 212 and the boss 213 away from the pixel definition structure 21 is a convex arc surface, compared with the planar structure, the amount of the organic common layer that can be accommodated above the arc surface is less, and the impedance of the corresponding organic common layer is larger, thereby being more conducive to reducing the leakage current from the second opening K2 to the first opening K1, and more conducive to avoiding the occurrence of the phenomenon of sub-pixel light stealing. Moreover, when the surface of at least one of the first protruding part 211, the second protruding part 212 and the boss 213 away from the pixel definition structure 21 is a convex arc surface, the layout path of the organic light-emitting layer and the electrical signal transmission path can also be increased, the amount of the electrical signal transmitted from the first opening K1 to the second opening K2 can be reduced, and the occurrence of the light stealing phenomenon can be avoided.

[0139] It should be noted that, Figure 11 Only the introduction of three bosses 213 between the first protruding part 211 and the second protruding part 212 and the fact that the heights of the three bosses 213 are not completely same are shown, but the number, shape and thickness of the bosses 213 contained between the first protruding part 211 and the second protruding part 212 are not limited.

[0140] Figure 12 Fig. 4 shows another structure diagram of the non-pixel region between two adjacent pixel regions, in an optional embodiment of the present application, at least one of the first protruding part 211, the second protruding part 212 and the boss 213 comprises a recessed part 223, the recessed part 223 is recessed from the surface of the protruding part or the boss 213 away from the pixel definition structure 21 towards the pixel definition structure 21, and the depth of the recessed part 223 is greater than the depth of the second groove 222.

[0141] The embodiment shows the scheme of introducing the recess 223 on the first protruding part 211 and the second protruding part 212, but does not limit the actual position of the recess 223, and the recess 223 can also be arranged on the boss 213. When the recess 223 is added in at least one of the first protruding part 211, the second protruding part 212 and the boss 213, the organic common layer can also be accommodated in the recess 223, which prolongs the layout path of the organic common layer and the electrical signal transmission path, and is beneficial to further reduce the amount of the organic common layer that can be accommodated on the upper surface of the first protruding part 211, the second protruding part 212 and the boss 213, increases the impedance of the organic common layer in these regions, and is beneficial to further reduce the leakage flow from the second region to the first region, avoiding the occurrence of the phenomenon of stealing light.

[0142] In the embodiment, the depth of the recess 223 is greater than the depth of the second groove 222 between the first protruding part 211 and the boss 213, between the boss 213 and the boss 213, and between the second protruding part 212 and the boss 213, so as to increase the amount of the organic common layer that can be accommodated in the recess 223, increase the difference between the top and the bottom of the recess 223, and thus increase the possibility of the organic common layer being disconnected at the top end of the recess 223, thereby being beneficial to block the path of the leakage flow transmission and effectively avoid the problem of stealing light of the sub-pixel.

[0143] Optionally, the inner diameter of the opening of the recess 223 is less than 2 μm, and the depth of the recess 223 is greater than the depth of the second groove 222 while being less than the height of the first protruding part 211, the second protruding part 212 or the boss 213 where the recess 223 is located, so as to avoid the recess 223 penetrating the first protruding part 211, the second protruding part 212 or the boss 213 where the recess 223 is located. The depth of the second groove 222 can refer to the depth of the second groove 222 in the above-mentioned embodiments, for example, 0.7 μm≤H2≤1.3 μm.

[0144] Optionally, the first protruding part 211, the second protruding part 212 and the boss 213 can be formed by introducing an organic mask combined with an exposure process, and the recess 223 can be formed by introducing a hard mask layer combined with an etching process. The detailed manufacturing process will be described in subsequent embodiments.

[0145] Figure 12 The embodiment only shows the scheme of arranging the recess 223 on the first protruding part 211 and one boss 213, but does not limit the position of the recess 223.

[0146] Figure 13Another structure diagram of the non-pixel region between two adjacent pixel regions is shown, in an optional embodiment of the present application, the height of the first protruding part 211 and the second protruding part 212 is greater than or equal to the height of the boss 213, and the recessed part 223 is arranged on the first protruding part 211 and the second protruding part 212.

[0147] Specifically, the embodiment shows the scheme that the recessed part 223 is arranged on the first protruding part 211, the second protruding part 212 and the boss 213, by increasing the number of the recessed part 223, the amount of the organic common layer that can be accommodated by the recessed part 223 is increased, thereby reducing the amount of the organic common layer that can be accommodated by the first protruding part 211, the second protruding part 212 and the boss 213, and even achieving the effect that the organic common layer is disconnected at the junction of the first protruding part 211 and the second protruding part 212 and the recessed part 223 to block the signal transmission path, thereby being more conducive to improving the phenomenon of sub-pixel light stealing.

[0148] Optionally, the height of the first protruding part 211 and the second protruding part 212 is greater than or equal to the height of the boss 213, when the recessed part 223 is arranged, in addition to being arranged on the first protruding part 211 and the second protruding part 212, the recessed part 223 can also be arranged on the boss 213 with greater height, thereby increasing the amount of the organic common layer that can be accommodated by the recessed part 223 as a whole. Of course, in some other embodiments of the present application, in addition to arranging the recessed part 223 on the first protruding part 211 and the second protruding part 212, the recessed part 223 can also be arranged on all bosses 213, to further increase the amount of the organic common layer that can be accommodated by the recessed part 223 as a whole, reduce the amount of the organic common layer that can be accommodated by the surface of the first protruding part 211, the second protruding part 212 and the boss 213, and further improve the light stealing phenomenon.

[0149] Continue to refer to Figure 13 In an optional embodiment of the present application, the light-emitting device layer 30 further comprises an anode 32, the anode 32 is located on the side of the pixel definition structure 21 facing the substrate 00, and in the direction perpendicular to the substrate 00, the distance between the surface of the anode 32 away from the substrate 00 and the bottom surface of the recessed part 223 is D0, 0.7 μm≤D0≤1 μm.

[0150] When a recess 223 is formed on at least one of the first protrusion 211, the second protrusion 212, and the boss 213, the recess 223 must not penetrate the pixel definition structure 21 to avoid exposing the anode 32 and affecting it. If the distance between the anode 32 and the recess 223 is too small, for example, less than 0.7 μm, the anode 32 is very likely to be exposed during the etching process to form the recess 223. When the anode 32 is electrically connected to the organic common layer, it will interfere with the signal of the anode 32 and affect the light emission reliability of the display panel. If the distance between the anode 32 and the recess 223 is too large, for example, greater than 1 μm, the depth of the recess 223 may be small, and the amount of organic common layer it can accommodate may be small, resulting in insignificant improvement in leakage. Therefore, in this embodiment, the distance between the anode 32 and the recess 223 is set to 0.7μm≤D0≤1μm. This not only protects the anode 32 and prevents the recess 223 from being too deep and exposing the anode 32, thus affecting the reliability of light emission, but also ensures that the recess 223 has a certain depth to accommodate more organic common layers and increases the step difference between the top and bottom of the groove, thereby effectively improving the phenomenon of light leakage caused by leakage.

[0151] Figure 14 The diagram shown illustrates the relative positional relationship between the second color light-emitting device P2 and the blocking part 22 provided in an embodiment of the present invention. Figure 15 As shown Figure 14 A cross-sectional view along the BB direction is shown. In an optional embodiment of the present invention, the blocking portion 22 is disposed around the second color light-emitting device P2. It should be noted that, to clearly illustrate the relative positional relationship between the blocking portion 22 and the second color light-emitting device P2, Figure 14 The barrier portion 22 and the pixel definition structure 21 are filled with different materials, but in fact the barrier portion 22 and the pixel definition structure 21 can be made of the same material.

[0152] When the display panel comprises at least three color different light emitting devices, assuming that the turn-on voltage of the second color light emitting device P2 is the largest, when the barrier portion 22 is arranged between the second color light emitting device P2 and other light emitting devices adjacent to the second color light emitting device P2, one possible implementation is that the barrier portion 22 surrounds the second color light emitting device P2, thus, the barrier portion 22 can block or reduce the leakage current of the electrical signal provided to the second color light emitting device P2 to any other color light emitting device adjacent to the second color light emitting device P2, thereby facilitating to improve the sub-pixel light stealing phenomenon. When the barrier portion 22 surrounds the second color light emitting device P2, in the protruding portion of the barrier portion 22 adjacent to the second color light emitting device P2, the second side wall M2 adjacent to the second color light emitting device P2 and the first side wall M1 are located on the side away from the second color light emitting device P2, wherein the included angle β between the second side wall M2 and the first bottom surface M0 is larger than the included angle α between the first side wall M1 and the first bottom surface M0, that is, the steeper side wall of the protruding portion is adjacent to the second color light emitting device P2, and the gentle side wall is arranged away from the second color light emitting device P2 relative to the steep side wall. The second side wall M2 adjacent to the second color light emitting device P2 in the protruding portion 220 is arranged to be steep, so that the difference between the top of the protruding portion at the position of the second side wall M2 and the first bottom surface M0 is large, and the organic common layer at the top of the second side wall M2 is extremely likely to be disconnected, or only a small thickness of the organic common layer can be reserved at the top position. When the driving voltage provided to the second color light emitting device P2 reaches the top position corresponding to the second side wall M2, it cannot be further transmitted to other light emitting devices adjacent to the second color light emitting device P2, or due to the small thickness and large impedance of the organic common layer at the top position, only a small voltage can be transmitted to other light emitting devices adjacent to the second color light emitting device P2, but it is not enough to drive other color light emitting devices adjacent to the second color light emitting device P2 to emit light, thereby effectively improving the light stealing phenomenon that may exist in the sub-pixel, and facilitating to improve the display effect of the display panel.

[0153] Figure 16 Fig. 2 shows a relative position relationship diagram of the second color light emitting device and the barrier portion 22 provided by the embodiment of the present application. In an optional embodiment of the present application, the protruding portion on the barrier portion 22 is a ring-shaped closed structure. It should be noted that, in order to clearly show the relative position relationship between the barrier portion 22 and the second color light emitting device P2, Figure 16 The barrier portion 22 and the pixel definition structure 21 are filled with different materials, but in fact, the barrier portion 22 and the pixel definition structure 21 can be made of the same material.

[0154] Please refer to Figure 16 and refer to Figure 15The embodiment shown in the figure illustrates a scheme in which the protruding part on the blocking part 22 is a ring-shaped closed structure when the blocking part 22 is arranged around the second color light emitting device P2. The embodiment is described by taking an example in which the same blocking part 22 includes two protruding parts 220, but the number of protruding parts 220 included in the blocking part 22 is not limited. In some other embodiments of the present application, the same blocking part 22 can also include a plurality of protruding parts 220.

[0155] When the protruding part 220 is a ring-shaped closed structure, and two protruding parts 220 are arranged between the two openings K, the volume of the groove between the protruding parts is increased, the amount of the organic common layer that can be accommodated by the groove is increased, the amount of the organic common layer on the top of the protruding part 220 is reduced, the impedance of the part of the organic common layer is increased, the leakage between the adjacent two openings is reduced, and the problem of sub-pixel light stealing is improved. The scheme of arranging the protruding part as a ring-shaped closed structure reduces the leakage of the electrical signal provided to the second color light emitting device from all directions after being blocked by the ring-shaped closed protruding part, and thus is more conducive to improving the phenomenon of sub-pixel light stealing.

[0156] In an optional embodiment of the present application, please refer to Figure 2 The blocking part 22 and the pixel definition structure 21 are made of the same material. In actual manufacturing of the display panel, the pixel definition structure 21 and the blocking part 22 can be formed by processing the same film layer. This is conducive to simplifying the manufacturing process of the display panel as a whole and improving the production efficiency of the display panel. How to process the same film layer to form the pixel definition structure 21 and the blocking part 22 will be described in detail in subsequent embodiments.

[0157] Figure 17 Fig. 1 shows a flow chart of a manufacturing method of a display panel provided by an embodiment of the present application. Based on the same inventive concept, the present application also provides a manufacturing method of a display panel, which comprises the following steps:

[0158] S01, providing a substrate 00 and forming an array layer 10 on the substrate 00, for example, please refer to Figure 18 , Figure 18 Fig. 2 shows a structure schematic diagram of forming the array layer 10 on the substrate 00 in the display panel provided by an embodiment of the present application;

[0159] S02, forming an anode 32 on the side of the array layer 10 away from the substrate 00, the anode 32 being electrically connected with the array layer 10, please refer to Figure 19 , Figure 19 Fig. 3 shows a structure schematic diagram of forming the anode 32 on the array layer 10;

[0160] S03, forming a pixel definition layer 20 on the side of the anode 32 away from the substrate 00, please refer to Figure 20 ,Figure 20 Fig. 6 shows a schematic diagram of a structure of forming the pixel definition layer 20 on the side of the anode 32 away from the substrate 00;

[0161] S04, a first mask 41 is arranged on the side of the pixel definition layer 20 away from the substrate 00, the first mask 41 at least includes a full transparent area A2, a semi-transparent area A1 and a non-transparent area A0, please refer to Figure 21 , Figure 21 Fig. 7 shows a schematic diagram of a structure of arranging the first mask 41 on the side of the pixel definition layer 20;

[0162] S05, exposure processing, please refer to Figure 22 , the pixel definition layer 20 is formed with an opening corresponding to the full transparent area A2, and the anode 32 is exposed, and the pixel definition structure 21 and the barrier portion 22 are formed in the non-transparent area A0 and the semi-transparent area A1, wherein the barrier portion 22 is arranged on the side of the pixel definition structure 21 away from the substrate 00; the barrier portion 22 includes at least one protruding portion 220, the protruding portion includes a first bottom surface M0 close to the substrate 00, an opposite first side wall M1 and a second side wall M2, the included angle between the first side wall M1 and the first bottom surface M0 is a, and the included angle between the second side wall M2 and the first bottom surface M0 is β, wherein one of a and β is greater than the other; wherein, Figure 22 Fig. 8 shows a schematic diagram of a structure of forming the pixel definition structure 21 and the barrier portion 22 on the pixel definition layer 20;

[0163] S06, please refer to Figure 23 , the organic common layer 31 is formed in at least the opening of the pixel area, wherein, Figure 23 Fig. 9 shows a schematic diagram of a structure of forming the organic common layer 31.

[0164] Optionally, after the organic common layer 31 is formed, a step of forming a cathode 33 and an encapsulation layer on the side of the organic common layer 31 away from the substrate 00 can be further included, and the light-emitting device layer 30 is encapsulated by the encapsulation layer to isolate the water and oxygen in the external environment from the light-emitting device layer 30, so as to avoid the influence of the water and oxygen on the performance of the light-emitting device layer 30.

[0165] It should be noted that the above embodiment only shows the scheme of forming the first protruding portion 211 and the second protruding portion 212 in the same barrier portion 22 and forming three bosses 213 between the first protruding portion 211 and the second protruding portion 212, but the barrier portion 22 formed by the above method is not limited to Figure 22 the structure shown in Fig. 10, i.e., the number of protruding portions and bosses 213 included in the barrier portion 22 is not limited, for example, the barrier portion 22 can also include only one protruding portion 220, please refer to Figure 24 , Figure 24Another structure schematic diagram of forming pixel definition structure 21 and barrier portion 22 on pixel definition layer 20 is shown. Optionally, for Figure 24 In the shown structure, in the non-pixel region between two adjacent openings K, the width of single full transparent region A2 along the arrangement direction of two openings can be set to 1.0 μm-2.8 μm, the non-transparent region A0 can be set to 2.5 μm-10 μm, the height of the protruding portion in the barrier portion 22 along the direction perpendicular to the substrate 00 is 1 μm-1.5 μm, and the height of the pixel definition structure 21 in the semi-transparent region A1 is 1 μm.

[0166] For Figure 22 In the shown structure, optionally, in the non-pixel region between two adjacent openings, the width of the full transparent region A2 between the semi-transparent region A1 and the non-transparent region A0 along the arrangement direction of two openings is 2 μm-2.8 μm, the distance between the highest point of the protruding portion and the surface of the pixel definition layer 20 facing the array layer 10, that is, the maximum thickness of the pixel definition layer 20 is 1.5 μm-2.1 μm.

[0167] The protruding portion formed by the above method is of an asymmetric structure, and along the arrangement direction of two adjacent pixel regions, the protruding portion located between the two pixel regions includes a first side wall M1 and a second side wall M2, wherein the angle between the first side wall M1 and the first bottom surface M0 is α, the angle between the second side wall M2 and the first bottom surface M0 is β, and α and β are different. When the organic common layer is formed in the pixel region and the non-pixel region, the asymmetric protruding portion in the barrier portion 22 prolongs the layout path of the organic common layer, reduces the amount of the organic common layer on the side of the protruding portion away from the substrate 00, and even the organic common layer will be able to be truncated on the side of the protruding portion away from the substrate 00, so that the driving current of a certain pixel region will not be able to flow to the adjacent pixel region, or only a small amount of current insufficient to drive the light-emitting device layer 30 to emit light can be transmitted to the adjacent pixel region, thus effectively improving the leakage phenomenon of the display panel, and thus being beneficial to improving the overall display effect of the display panel.

[0168] Figure 25 Another flowchart of the manufacturing method of the fixed display panel provided by the embodiment of the present application is shown. Please refer to Figure 25 In an optional embodiment of the present application, after forming the openings, the pixel definition structure 21 and the barrier portion 22, that is, after the above step S05, further comprising:

[0169] S10, please refer to Figure 26 A first hard mask layer 51 is formed on the side of the openings, the pixel definition structure 21 and the barrier portion 22 away from the substrate 00, Figure 26 A structure schematic diagram of introducing the first hard mask layer 51 is shown. Optionally, the first hard mask layer 51 is an IZO layer.

[0170] S11, please refer to Figure 27 , the first hard mask layer 51 away from the substrate 00 side of the first organic film 52 is formed, the first organic film 52 is processed, the first organic film 52 on the formation of the non-open area Q00 and the opening area Q01, along the direction perpendicular to the substrate 00, the first organic film 52 opening area Q01 at least with the convex portion 22 overlap, and the opening area Q01 and the opening K do not overlap, wherein, Figure 27 It is shown that the first organic film 52 is formed on the first hard mask layer 51. Optionally, the first organic film 52 can be photoresist and the like. The full transparent area A2 of the first organic film 52 overlaps the convex portion 22, and if the convex portion 22 further includes a convex platform 213, the full transparent area A2 can also overlap the convex platform 213, but the full transparent area A2 does not overlap the groove between the convex portion. Optionally, the method of forming the non-open area Q00 and the opening area Q01 on the first organic film 52 can be to introduce a mask plate on the side of the first organic film 52 away from the first hard mask layer 51. The mask plate is provided with a full transparent area and a non-transparent area. Through exposure treatment, the opening area Q01 will be formed on the first organic film 52 corresponding to the full transparent area of the mask plate, and the non-open area Q00 will be formed corresponding to the non-transparent area of the mask plate, wherein the opening area Q01 penetrates the first organic film 52 along the thickness direction of the first organic film 52.

[0171] S12, please refer to Figure 28 , the first hard mask layer 51 located in the opening area Q01 is removed. Optionally, the method of removing the first hard mask layer 51 can be wet etching, wherein, Figure 28 It is shown that part of the first hard mask layer 51 is removed.

[0172] S13, please refer to Figure 29 In the opening area Q01, the recessed portion 223 is formed on the convex portion by etching. Optionally, the etching here can be dry etching, wherein, Figure 29 It is shown that the recessed portion 223 is formed on the convex portion.

[0173] S14, please refer to Figure 30 , the first organic film 52 and the first hard mask layer 51 are removed in turn, wherein, Figure 30 It is shown that the first organic film 52 and the first hard mask layer 51 are removed on the basis of the structure shown in Figure 29 It is shown that the first organic film 52 and the first hard mask layer 51 are removed on the basis of the structure shown in

[0174] Specifically, the embodiment further shows a method of forming the recessed portion 223 on the protruding portion of the barrier portion 22. Before forming the recessed portion 223, the first hard mask layer 51 and the first organic film 52 are formed on the side of the opening, the pixel definition structure 21 and the barrier portion 22 away from the substrate 00. After removing the first hard mask layer 51 located at the position of the opening region Q01, the protruding portion or the boss 213 in the opening region Q01 can be dry etched under the blocking action of the first hard mask layer 51 in the non-opening region Q00, so as to form the recessed portion 223 on the protruding portion or the boss 213. The recessed portion 223 formed by the dry etching method has a large depth, which can be greater than the depth of the groove in the barrier portion 22, that is, the step difference between the top end and the bottom end of the recessed portion 223 is large. When the organic common layer is formed subsequently, the amount of the organic common layer that can be accommodated in the recessed portion 223 will be large, which is beneficial to prolong the layout path of the organic common layer and the transmission path of the electrical signal. The large step difference design of the recessed portion 223 increases the possibility of the disconnection of the organic common layer at the top end of the recessed portion 223, and thus is beneficial to block the transmission path of the leakage current, effectively avoiding the problem of sub-pixel light stealing.

[0175] Figure 31 Another flowchart of the manufacturing method of the display panel is shown. Based on the same inventive concept, the application further provides a manufacturing method of a display panel, which comprises:

[0176] S21, please refer to Figure 18 A substrate 00 is provided, and an array layer 10 is formed on the substrate 00.

[0177] S22, please refer to Figure 19 An anode 32 is formed on the side of the array layer 10 away from the substrate 00, and the anode 32 is electrically connected with the array layer 10.

[0178] S23, please refer to Figure 20 A pixel definition layer 20 is formed on the side of the anode 32 away from the substrate 00.

[0179] S24, please refer to Figure 32 and Figure 33 A first mask plate 41 is arranged on the side of the pixel definition layer 20 away from the substrate 00, and the first mask plate 41 comprises a full transparent region A2 and a non-transparent region A0, or the first mask plate 41 comprises a full transparent region A2, a non-transparent region A0 and a semi-transparent region A1; wherein, Figure 32 a scheme in which the first mask plate 41 only comprises the full transparent region A2 and the non-transparent region A0 when the first mask plate 41 is introduced is shown, Figure 33 a scheme in which the first mask plate 41 comprises the full transparent region A2, the non-transparent region A0 and the semi-transparent region A1 when the first mask plate 41 is introduced is shown.

[0180] S25, please refer toFigure 34 and Figure 35 , forming openings in the full transparent region A2 and exposing the anode 32 by means of exposure; wherein, Figure 34 is a structure diagram formed by exposure of the Figure 32 corresponding first mask 41 structure, Figure 35 is a structure diagram formed by exposure of the Figure 33 corresponding first mask 41, for Figure 34 , the structure shown, a groove structure is formed at the position corresponding to the semi-transparent region A1 of the first mask 41.

[0181] S26, please refer to Figures 36 to 39 , forming a first hard mask layer 51 on the side of the opening and the pixel definition layer 20 away from the substrate 00, forming a second organic film 53 on the side of the first hard mask layer 51 away from the substrate 00, processing the second organic film 53, forming an opening region Q21 and a non-opening region Q22 on the second organic film 53, along the direction perpendicular to the substrate 00, the opening region Q21 only overlaps with the pixel definition layer 20; wherein, Figure 36 is a structure diagram of forming the Figure 34 structure shown, Figure 37 is a structure diagram of forming the Figure 36 structure shown, Figure 38 is a structure diagram of forming the Figure 35 structure shown, Figure 39 is a structure diagram of forming the Figure 38 structure shown. Optionally, the first hard mask layer 51 in the embodiment may, for example, be embodied as an IZO layer, and the second organic film 53 may, for example, be embodied as a photoresist. The method of forming the opening region Q21 and the non-opening region Q22 on the second organic film 53 may be that a mask plate is introduced on the side of the second organic film 53 away from the first hard mask layer 51, the mask plate is provided with a full transparent region and a non-transparent region, by exposure processing, the opening region Q21 will be formed on the second organic film 53 at the position corresponding to the full transparent region of the mask plate, and the non-opening region Q22 will be formed at the position corresponding to the non-transparent region of the mask plate, wherein the opening region Q21 penetrates the second organic film 53 along the thickness direction of the second organic film 53.

[0182] S27, continue to refer to Figure 40 and Figure 41 , removing the first hard mask layer 51 located in the opening region Q21, wherein, Figure 40 is a structure diagram of removing the first hard mask layer 51 in the opening region Q21 based on the structure shown in Figure 38 , Figure 41 is a structure diagram ofFigure 39 The diagram shows a structure in which the first hard mask layer 51 of the opening region Q21 is removed. Optionally, the method for removing the first hard mask layer 51 is wet etching.

[0183] S28, Continue to refer to Figure 42 and Figure 43 and combined Figure 4 A barrier portion 22 and a pixel definition structure 21 are formed on the pixel definition layer 20 by etching. The barrier portion 22 is disposed on the side of the pixel definition structure 21 away from the substrate 00. The barrier portion 22 includes at least one protrusion, which includes a first bottom surface near the substrate 00, a first sidewall, and a second sidewall. The angle between the first sidewall and the first bottom surface is α, and the angle between the second sidewall and the first bottom surface is β, wherein one of α and β is greater than the other. Figure 42 The image shown is in Figure 40 A schematic diagram of a structure in which a barrier portion 22 and a pixel definition structure 21 are formed based on the structure shown. Figure 43 The image shown is in Figure 41 A schematic diagram of a structure in which a barrier portion 22 and a pixel definition structure 21 are formed based on the structure shown.

[0184] S29, Continue to refer to Figure 44 and Figure 45 The second organic film 53 and the first hard mask layer 51 are removed sequentially, wherein, Figure 44 The image shows the removal process. Figure 42 A schematic diagram of a structure behind the second organic film 53 and the first hard mask layer 51 in the structure shown. Figure 45 The image shows the removal process. Figure 43 A schematic diagram of a structure behind the second organic film 53 and the first hard mask layer 51 in the structure shown.

[0185] S30, please refer to Figure 46 and Figure 47 An organic common layer 31 is formed at least in the opening of the pixel region, wherein, Figure 46 The image shown is in Figure 44 This is a schematic diagram of a structure in which an organic common layer is formed based on the structure shown. Figure 47 The image shown is in Figure 45 The diagram illustrates a structure in which an organic common layer is formed based on the structure shown. It should be noted that... Figure 46 and Figure 47 The cathode 33 shown is formed after the organic common layer 31 is formed. Optionally, after the anode is formed, a step of forming an encapsulation layer on the anode is also included.

[0186] Specifically, in the manufacturing method provided by the embodiment of the present application, after the pixel definition layer 20 and the openings corresponding to the pixels are formed, the first hard mask layer 51 and the second organic film 53 are sequentially arranged on the pixel definition layer 20, the first hard mask layer 51 located in the full-transmission area A2 is removed, and the pixel definition layer 20 is etched from the full-transmission area A2 under the blocking action of the first hard mask layer 51. For example, the etching mode is dry etching. This mode is beneficial to increase the depth of the groove formed on the pixel definition layer 20 by etching, so that the difference between the top end and the bottom end of the groove is large. When the organic common layer is formed subsequently, the amount of the organic common layer that can be accommodated in the groove is large, which is beneficial to prolong the layout path of the organic common layer and the transmission path of the electrical signal. The large difference of the groove increases the possibility of the disconnection of the organic common layer at the top end of the groove, and thus is beneficial to block the transmission path of the leakage current, effectively avoiding the problem of sub-pixel light stealing.

[0187] Meanwhile, the above method can also be used to form an asymmetric protruding part in the pixel definition layer 20. Along the arrangement direction of the two adjacent pixel regions, the protruding part located between the two pixel regions includes a first side wall and a second side wall, wherein the included angle between the first side wall and the first bottom surface is α, the included angle between the second side wall and the first bottom surface is β, and α and β are different. When the organic common layer is formed in the pixel region and the non-pixel region, the asymmetric protruding part in the barrier part 22 prolongs the layout path of the organic common layer, reduces the amount of the organic common layer on the side of the protruding part away from the substrate 00, and even the organic common layer will be cut off on the side of the protruding part away from the substrate 00. The driving current of a certain pixel region cannot leak to the adjacent pixel region, or only a small amount of current that is insufficient to drive the light-emitting device layer 30 to emit light can be transmitted to the adjacent pixel region. In this way, the leakage phenomenon of the display panel is effectively improved, and thus the overall display effect of the display panel is improved.

[0188] Figure 48 The figure shows a structure schematic diagram of a display device provided by the embodiment of the present application. Based on the same inventive concept, the present application also provides a display device 200, which includes the display panel 100 provided by the above-mentioned embodiments of the present application.

[0189] It can be understood that the display device provided by the embodiment of the present application can be a mobile phone, a tablet computer, a computer, a television, a vehicle-mounted display device, or other display devices with display functions, and the present application does not make specific limitations in this regard. The display device provided by the embodiment of the present application has the beneficial effects of the display panel provided by the embodiment of the present application, and specific details can be referred to the above-mentioned descriptions of the display panel in each embodiment. The present embodiment will not be described here again.

[0190] In summary, the display panel, the manufacturing method thereof, and the display device provided by the present application at least achieve the following beneficial effects:

[0191] In the display panel and the display device provided by the embodiments of the present application, or the display panel formed by the manufacturing method of the present application, the pixel definition layer includes a pixel definition structure in the non-pixel region and an opening in the pixel region, the opening is used to arrange the light emitting device layer, the light emitting device layer in the opening emits light under the drive of the current to realize the display function, and the light emitting device layer includes the organic common layer. When the organic common layer is formed, part of the organic common layer is in the pixel region and part of the organic common layer is in the non-pixel region. In the present application, the barrier portion is arranged on the side of the pixel definition structure away from the substrate, the barrier portion includes at least one protruding portion, the protruding portion is an asymmetric structure, the first side wall and the first bottom surface form an angle α, the second side wall and the first bottom surface form an angle β, and α and β are different. When the organic common layer is formed in the pixel region and the non-pixel region, the asymmetric protruding portion in the barrier portion prolongs the layout path of the organic common layer, reduces the amount of the organic common layer on the side of the protruding portion away from the substrate, and even the organic common layer will be able to be truncated on the side of the protruding portion away from the substrate, the driving current of a certain pixel region will not be able to flow to the adjacent pixel region, or only a small amount of current that is insufficient to drive the light emitting device layer to emit light may be transmitted to the adjacent pixel region. In this way, the current leakage phenomenon of the display panel is effectively improved, and thus the overall display effect of the display panel is improved.

[0192] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration and are not intended to limit the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A display panel, characterized by, The display panel comprises a plurality of pixel regions and a non-pixel region located between at least two adjacent pixel regions. The display panel further comprises: a substrate; a pixel definition layer located on one side of the substrate, comprising a pixel definition structure located in the non-pixel region and an opening located in the pixel region; a barrier portion arranged on the side of the pixel definition structure away from the substrate; a light-emitting device layer, the light-emitting device layer comprising an organic common layer located on the side of the barrier portion away from the substrate; the barrier portion comprises at least one protruding portion, the protruding portion comprising a first bottom surface close to the substrate, an opposite first sidewall and a second sidewall, an included angle between the first sidewall and the first bottom surface being α, and an included angle between the second sidewall and the first bottom surface being β, wherein one of α and β is greater than the other, and α < β; the opening comprises a first opening and a second opening, the light-emitting device layer comprises a first color light-emitting device and a second color light-emitting device, the first opening corresponds to the first color light-emitting device, and the second opening corresponds to the second color light-emitting device, the first color light-emitting device emitting light of a wavelength greater than that of the second color light-emitting device; in a direction from the first opening to the second opening, a minimum distance between the barrier portion and the first opening is D1, and a minimum distance between the barrier portion and the second opening is D2, wherein D1 < D2.

2. The display panel of claim 1, wherein, The first opening and the second opening are located on both sides of the protruding portion and adjacent to the protruding portion, in a first direction, the first opening is located on the side of the first sidewall away from the second sidewall, and the second opening is located on the side of the second sidewall away from the first sidewall, the first direction being an arrangement direction of the first opening and the second opening adjacent to the same protruding portion.

3. The display panel of claim 1, wherein 0°＜α≤70°，60°≤β≤100°。 4. The display panel of claim 1, wherein the second color light-emitting device is a blue light-emitting device.

5. The display panel of claim 1, wherein, in a direction perpendicular to the substrate, a total thickness of the protruding portion and the pixel definition structure is H1, and 1.5 μm ≤ H1 ≤ 2.5 μm.

6. The display panel of claim 1, wherein, the opening comprises a first opening and a second opening, the first opening and the second opening are located on both sides of the protruding portion and adjacent to the protruding portion, and the first opening and the second opening are arranged in a first direction; the protruding portion comprises a first protruding portion and a second protruding portion; in the first direction, the first protruding portion is located between the first opening and the second protruding portion, and a first sidewall of the first protruding portion is adjacent to the first opening; the second protruding portion is located between the second opening and the first protruding portion, and a first sidewall of the second protruding portion is adjacent to the second opening.

7. The display panel of claim 6, wherein, a shape of a normal projection of the first protruding portion on the substrate is the same as a shape of a normal projection of the second protruding portion on the substrate.

8. The display panel of claim 6, wherein, A first recess is formed between the second sidewall of the first protruding part and the second sidewall of the second protruding part, the protruding part includes a first top surface facing away from the substrate, an angle between the first top surface and the second sidewall is θ, 85°≤θ<180°, and β≤90°.

9. The display panel of claim 6, wherein, The barrier part further includes at least one boss, the boss is located between the first protruding part and the second protruding part, and a second recess is formed between the boss and the first protruding part and between the boss and the second protruding part, respectively.

10. The display panel of claim 9, wherein, In a direction perpendicular to the substrate, a depth of at least one second recess is H2, 0.7μm≤H2≤1.3μm.

11. The display panel of claim 9, wherein, The first protruding part, the second protruding part and the boss have surfaces facing away from the pixel definition structure located in the same plane.

12. The display panel of claim 9, wherein, At least one of the first protruding part, the second protruding part and the boss has a surface facing away from the pixel definition structure as a convex arc surface.

13. The display panel of claim 9, wherein, At least one of the first protruding part, the second protruding part and the boss includes a recessed part recessed from a surface of the protruding part or the boss facing away from the pixel definition structure towards the pixel definition structure, and a depth of the recessed part is greater than a depth of the second recess.

14. The display panel of claim 13, wherein, The first protruding part and the second protruding part have a height greater than or equal to a height of the boss, and the first protruding part and the second protruding part are both provided with the recessed part.

15. The display panel of claim 13, wherein, The light emitting device layer further includes an anode located on a side of the pixel definition structure facing the substrate, and in a direction perpendicular to the substrate, a distance between a surface of the anode facing away from the substrate and a bottom surface of the recessed part is D0, 0.7μm≤D0≤1μm.

16. The display panel of claim 1, wherein, The barrier part surrounds the second color light emitting device.

17. The display panel of claim 16, wherein, The protruding part on the barrier part is a ring-shaped closed structure.

18. The display panel of claim 1, wherein, The barrier part and the pixel definition structure are made of the same material.

19. A manufacturing method of a display panel, comprising: The method comprises: a substrate is provided, and an array layer is formed on the substrate; an anode is formed on a side of the array layer facing away from the substrate, and the anode is electrically connected to the array layer; a pixel definition layer is formed on a side of the anode facing away from the substrate; a first mask is arranged on a side of the pixel definition layer facing away from the substrate, and the first mask includes at least a full transparent area, a semi-transparent area and a non-transparent area; exposure processing is performed, an opening is formed on the pixel definition layer corresponding to the full transparent area, and the anode is exposed, pixel definition structures and a barrier part are formed on the non-transparent area and the semi-transparent area, the barrier part is arranged on a side of the pixel definition structure facing away from the substrate, the barrier part includes at least one protruding part, the protruding part includes a first bottom surface close to the substrate, a first sidewall and a second sidewall opposite to each other, an angle between the first sidewall and the first bottom surface is α, and an angle between the second sidewall and the first bottom surface is β, one of α and β is greater than the other; a first hard mask layer is formed on a side of the opening, the pixel definition structure and the barrier part facing away from the substrate; and a second hard mask layer is formed on a side of the first hard mask layer facing away from the substrate. forming a first organic film on a side of the first hard mask layer away from the substrate, processing the first organic film to form an opening region and a non-opening region on the first organic film, the opening region of the first organic film at least overlapping the protruding portion in a direction perpendicular to the substrate, and the opening region not overlapping the opening; removing the first hard mask layer located in the opening region; forming a recess on the protruding portion in the opening region by etching; sequentially removing the first organic film and the first hard mask layer; forming an organic common layer in at least the opening of the pixel region.

20. A display device comprising: The display panel includes any one of claims 1-18.

Images